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v3.19.2

EID - Basis of Presentation Narrative (Details) | 6 Months Ended
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Jun. 30, 2019
Corteva [Member] | EID [Member] |
Ownership interest in an entity | 100.00%

X
- Definition Ownership interest in an entity + References No definition available. + Details
Name: | dd_Ownershipinterestinanentity
Namespace Prefix: | dd_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | dd_CompanyAxis=dd_CortevaMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | dei_LegalEntityAxis=dd_EIDMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |